<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style>
		#back{
			width: 100px;
			height: 100px;
			background: #fff;
			color::#000;
		}
		#back img{
			width: 100%;
		}
	</style>



</head>
<body>
	<div id="back">
		<img src="../image/back.png">
	</div>
<script>
	apiready = function(){
	    api.getPrefs({
		    key: 'pic'
		}, function(ret, err){
			alert('这幅轮播图信息在数据库的序号是'+ret.value);
		})
	}
	    
</script>






	<script>
		document.getElementById('back').onclick = function(){
			api.closeWin();
		}
	</script>

</body>
</html>